Simple Server Monitor
Simple Server Monitor is a powerful, yet easy to use server monitoring utility. It allows you to monitor the status of your servers and web applications from your desktop. Simple Server Monitor runs as a notification icon and you will be unaware that it is running - until a monitor fails. ... Simple Server Monitor also supports performance monitoring by charting the monitor response time and by logging (optional) all monitor queries to a log file and/or the event log. ... Supports Ping, HTTP/HTTP, FTP/FTPS, SMTP/SMTPS, POP3/POP3S, IMAP/IMAPS, and Custom monitors (supports SSL/TLS).
http://www.simpleservermonitor.com/files/setup.exe - 4Mb - Download - Screenshot

PA Server Monitor
PA Server Monitor is a Windows service that monitors the health and availability of Windows servers, network services (on Windows, Linux and other operating systems), and devices. No agents are needed to monitor remote servers. Also includes rich reporting on most monitored resources. ... PA Server Monitor can watch: Event logs on local and remote Windows servers CPU and memory usage Free local and server disk space Changed files and directories (great intrusion detection) Running Windows services Custom script results Local and remote directory quota monitoring Network Interface...
http://www.poweradmin.com/servermonitor/servermonitorpro.exe - 5Mb - Download - Screenshot

Easy Network Service Monitor
Easy Service Monitor is a network fault management tool that continuously monitors network devices and services. If something went wrong, it will alert you by email/phone/pager BEFORE problems get seriously out of hand. A detailed log file will record every event of the monitored targets and can... You can configure the system so that when something goes wrong, a set of actions, such as execute a program, reboot server or update web page, will be triggered.
http://www.javvin.com/emonitor.exe - 2Mb - Download - Screenshot

Alchemy Network Monitor
Alchemy Network Monitor monitors your network servers and business-critical applications availability and performance and immediately alerts you if a server gets out of order. Alchemy Network Monitor can also perform certain actions (e. g. launch an external application or execute an SQL query)...
http://www.mishelpers.com/ftp/netmon.zip?c=archive - 2Mb - Download - Screenshot

Alchemy Network Monitor PRO
Alchemy Network Monitor monitors your network servers and business-critical applications availability and performance and immediately alerts you if a server gets out of order. Alchemy Network Monitor can also perform certain actions (e. g. launch an external application or execute an SQL query)...
http://www.mishelpers.com/ftp/netmonpro.zip?c=archive - 3Mb - Download - Screenshot

ServerSweep Professional
ServerSweep Professional has been designed from the ground up by experienced Microsoft Windows NT / 2000 Server support engineers and consultants to provide the very best in Microsoft Server Monitoring. ServerSweep Professional has been optimised to allow you to monitor almost every aspect of... Net Server, without the need to install any client software on the monitored server itself. ... ServerSweep offers a rich set of monitoring options including: System Overview, TCP/IP, Services, Processes, SNMP, Event Log, Performance, URL, Disk Space and Custom Tests.
http://www.blue-square-software.com/pages/Trial/downloaddetails.htm - 16Mb - Download - Screenshot

ManageEngine Applications Manager
Applications Manager offers a single integrated monitoring tool suitable for application monitoring, database monitoring, system monitoring, website monitoring, services monitoring, and custom application monitoring. Applications Manager proactively monitors the applications and servers and... NET Monitoring, Oracle Application Server, JBoss Monitoring, Tomcat Monitoring, WebLogic Monitoring, WebSphere Monitoring and Java/J2EE Web Transactions. ... Website monitoring involves URL Monitoring , URL Sequence Monitoring and URL Content Monitoring.
http://download.adventnet.com/prod...ageEngine_ApplicationsManager.exe - 16Mb - Download - Screenshot

IPAppmon
Are you an over-worked network administrator? Get calls complaining about system outages you have no way of monitoring? Don't know if your payroll server is up or down? Rest easy. AppMon makes it easy to run applications and monitor them from your current network monitoring package.... ... *Suggested network monitoring tools include: What's Up Gold and Server's Alive. ... If any one of the Applications started by AppMon fails (or is accidentally closed), you will be notified visualy, audibly, by email and through your network monitoring tool.
http://www.ipworx.com/product/appmon/appmon4.zip - 4Mb - Download - Screenshot

HSLAB HTTP Monitor
Real-time performance monitoring solution for Apache servers. HSLAB HTTP Monitor is a handy real-time performance monitoring and statistics analysis software application for Apache servers, which are used ubiquitously in the web hosting industry. Basically, with HSLAB monitoring system... That is the server running on Apache may be located thousands of miles away, while the program (HSLAB HTTP Monitor) could be installed on home or office PC and the system administrator will always have access to server?
http://www.sys-monitoring.com/downloads/hslab-http-monitor.exe - 3Mb - Download - Screenshot

Servers Alive
Servers Alive is your 24/7 automatic server monitoring solution for guarding against server and process failures or attack. Script your own tests plus use our built-in functionality to automatically monitor critical server functions and processes including: PING (ICMP/TCP and IPX), TCP Services,... Discover why Servers Alive is the preferred server monitoring solution for compananies and organizations of all sizes. ... Try the free Servers Alive Windows version today. ... You can easily create scripted response scenarioes to reboot,shut down, execute another program, or take any other...
http://www.woodstone.nu/soft/salive.exe - 12Mb - Download - Screenshot